Motto: “Imagine two events in history, (a) followed by (b), which in some way are analogous. The danger to the European will be to think of them as identical, so that if I know what to do over (a), I shall know exactly what to do with (b). The danger in America will be to see no relations between these things at all, so that any knowledge I have about (a) will not help me to understand (b)”.W. H. Auden
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Waszkiewicz, J. The notions of isomorphism and identity for many-valued relational structures. Stud Logica 27, 93–98 (1971). https://doi.org/10.1007/BF02282556
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DOI: https://doi.org/10.1007/BF02282556